48 lines
1.3 KiB
Go
48 lines
1.3 KiB
Go
/*
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Copyright 2019 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package nodeinfo
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import (
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v1 "k8s.io/api/core/v1"
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)
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// Snapshot is a snapshot of cache NodeInfo. The scheduler takes a
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// snapshot at the beginning of each scheduling cycle and uses it for its
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// operations in that cycle.
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type Snapshot struct {
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NodeInfoMap map[string]*NodeInfo
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Generation int64
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}
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// NewSnapshot initializes a Snapshot struct and returns it.
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func NewSnapshot() *Snapshot {
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return &Snapshot{
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NodeInfoMap: make(map[string]*NodeInfo),
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}
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}
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// ListNodes returns the list of nodes in the snapshot.
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func (s *Snapshot) ListNodes() []*v1.Node {
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nodes := make([]*v1.Node, 0, len(s.NodeInfoMap))
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for _, n := range s.NodeInfoMap {
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if n != nil && n.node != nil {
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nodes = append(nodes, n.node)
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}
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}
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return nodes
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}
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